i thought that was the way Linus pronounced it too (roughly: lee-nooks)
then i just had this: http://www.youtube.com/watch?v=5IfHm6R5le0 pointed out to me he seems to have 'adopted'? the (ghastly) murkun way. (roughly: lin-ucks) which is the way i've heard every person in the states pronounce it (Dutch and German folks... not so much) [shrug]